[go: up one dir, main page]

WO2002025821A8 - Method for measuring unidirectional transmission characteristics in a data network - Google Patents

Method for measuring unidirectional transmission characteristics in a data network

Info

Publication number
WO2002025821A8
WO2002025821A8 PCT/EP2001/008106 EP0108106W WO0225821A8 WO 2002025821 A8 WO2002025821 A8 WO 2002025821A8 EP 0108106 W EP0108106 W EP 0108106W WO 0225821 A8 WO0225821 A8 WO 0225821A8
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
time
computer
test packet
computers
Prior art date
Application number
PCT/EP2001/008106
Other languages
German (de)
French (fr)
Other versions
WO2002025821A2 (en
WO2002025821A3 (en
Inventor
Heinrich Doerken
Joachim Mende
Original Assignee
Deutsche Telekom Ag
Heinrich Doerken
Joachim Mende
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Telekom Ag, Heinrich Doerken, Joachim Mende filed Critical Deutsche Telekom Ag
Priority to DE50111060T priority Critical patent/DE50111060D1/en
Priority to EP01969381A priority patent/EP1382126B1/en
Priority to US10/381,095 priority patent/US8160835B2/en
Publication of WO2002025821A2 publication Critical patent/WO2002025821A2/en
Publication of WO2002025821A3 publication Critical patent/WO2002025821A3/en
Publication of WO2002025821A8 publication Critical patent/WO2002025821A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G7/00—Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H04L43/0858—One way delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H04L43/087—Jitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0644—External master-clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0829—Packet loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0876—Network utilisation, e.g. volume of load or congestion level
    • H04L43/0888—Throughput
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
    • H04L43/106—Active monitoring, e.g. heartbeat, ping or trace-route using time related information in packets, e.g. by adding timestamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention relates to a method for measuring unidirectional transmission characteristics, such as packet propagation time (Dnetz), fluctuations in propagation time (tjitter) and results that can be derived from this, in a telecommunications network (10), such as the Internet, an intranet or similar. Multiple switching devices (12 to 22) and other devices (34, 36, 38) are interconnected by connection lines (24) in the telecommunications network. Test packets that are sent between at least two measuring computers (26, 28) are transmitted from the first measuring computer (26) to the second measuring computer (28) via a measuring path (32). The first measuring computer (26) detects the departure time (t1) of the outgoing test packet. This time is sent with the test packet. The second measuring computer (28) detects the arrival time (t2) of the test packet. The propagation time (Dnetz) of the test packet - the measuring result - is determined by calculating the difference between the time of departure from the first measuring computer (26) and the time of arrival in the second measuring computer (28). According to the invention, the two measuring computers (26, 28) are time-synchronised for the determination of the measuring result, the time being continuously transmitted to both measuring computers (26; 28) through satellite systems (30), for example GPS.
PCT/EP2001/008106 2000-09-19 2001-07-13 Method for measuring unidirectional transmission characteristics in a data network WO2002025821A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50111060T DE50111060D1 (en) 2000-09-19 2001-07-13 METHOD FOR MEASURING UNIDIRECTIONAL TRANSMISSION CHARACTERISTICS, SUCH AS PACKAGE RUNNING TIME, RUNTIME FLUCTUATIONS, AND RESULTS THEREOF, IN A DATA NETWORK
EP01969381A EP1382126B1 (en) 2000-09-19 2001-07-13 Method for measuring unidirectional transmission characteristics such as packet propagation time, fluctuations in propagation time and the results which can be derived from this, in a telecommunications network
US10/381,095 US8160835B2 (en) 2000-09-19 2001-07-13 Method for measuring unidirectional transmission characteristics such as packet propagation time, fluctuations in propagation time and results derivable therefrom, in a telecommunications network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10046240A DE10046240A1 (en) 2000-09-19 2000-09-19 Method for measuring the unidirectional transmission properties such as packet transmission time and transmission time fluctuations in a telecommunication network
DE10046240.5 2000-09-19

Publications (3)

Publication Number Publication Date
WO2002025821A2 WO2002025821A2 (en) 2002-03-28
WO2002025821A3 WO2002025821A3 (en) 2003-10-30
WO2002025821A8 true WO2002025821A8 (en) 2004-05-21

Family

ID=7656723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/008106 WO2002025821A2 (en) 2000-09-19 2001-07-13 Method for measuring unidirectional transmission characteristics in a data network

Country Status (5)

Country Link
US (1) US8160835B2 (en)
EP (1) EP1382126B1 (en)
AT (1) ATE340435T1 (en)
DE (2) DE10046240A1 (en)
WO (1) WO2002025821A2 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10128927B4 (en) * 2001-06-15 2013-10-17 Deutsche Telekom Ag Method for determining the time in at least two interacting measuring computers
DE10133233A1 (en) * 2001-07-09 2003-01-30 Tenovis Gmbh & Co Kg Method for data transmission in telecommunications installation
US20030033404A1 (en) * 2001-08-09 2003-02-13 Richardson David E. Method for automatically monitoring a network
DE10210712A1 (en) 2002-03-12 2003-10-02 Deutsche Telekom Ag Method for transferring measurement data from a measurement computer to a control computer of a measurement system
DE10210707A1 (en) 2002-03-12 2003-10-02 Deutsche Telekom Ag Process for the output of status data
DE10210711A1 (en) * 2002-03-12 2003-11-13 Deutsche Telekom Ag Method for time synchronization of at least two measuring computers cooperating with each other via a telecommunication network, such as internet, intranet or the like
DE10330286B4 (en) * 2003-07-04 2005-08-18 Infineon Technologies Ag Method and apparatus for transmitting voice signals over a communications network
US7529247B2 (en) * 2003-09-17 2009-05-05 Rivulet Communications, Inc. Empirical scheduling of network packets
US7468948B2 (en) * 2003-09-17 2008-12-23 Steven A Rogers Empirical scheduling of network packets using coarse and fine testing periods
US7339923B2 (en) * 2003-10-31 2008-03-04 Rivulet Communications, Inc. Endpoint packet scheduling system
US7508813B2 (en) * 2003-11-25 2009-03-24 Rivulet Communications Local area network contention avoidance
EP1714428A4 (en) * 2004-02-06 2009-07-08 Apparent Networks Inc METHOD AND APPARATUS FOR CHARACTERIZING A END-TO-END PATH OF A PACKET SWITCHING NETWORK
GB0406860D0 (en) * 2004-03-26 2004-04-28 British Telecomm Computer apparatus
US7453885B2 (en) * 2004-10-13 2008-11-18 Rivulet Communications, Inc. Network connection device
US7545764B1 (en) * 2004-11-19 2009-06-09 Cypress Semiconductor Corporation Synchronized code recognition
DE102005021129A1 (en) 2005-05-06 2006-11-09 Robert Bosch Gmbh Data e.g. bank transaction data, transmitting method, involves connecting data source to locating unit, and assigning useful data in supplementary data, where supplementary data is transmitted to sink together with useful data
US20070071026A1 (en) * 2005-09-23 2007-03-29 Rivulet Communications, Inc. Compressed video packet scheduling system
JP4784333B2 (en) * 2006-02-22 2011-10-05 横河電機株式会社 Time synchronization abnormality detection device and time synchronization abnormality detection method
US20080019383A1 (en) * 2006-07-20 2008-01-24 British Telecommunications Public Limited Company Telecommunications switching
US20080019362A1 (en) * 2006-07-20 2008-01-24 British Telecommunications Public Limited Company Telecommunication multicast system
US20080019384A1 (en) * 2006-07-20 2008-01-24 British Telecommunications Public Limited Company Telecommunication multicast system
US20080019382A1 (en) * 2006-07-20 2008-01-24 British Telecommunications Public Limited Company Telecommunications switching
US20080112399A1 (en) * 2006-11-13 2008-05-15 British Telecommunications Public Limited Company Telecommunications system
US20080188191A1 (en) * 2007-02-06 2008-08-07 British Telecommunications Public Limited Company Network monitoring system
US20080186854A1 (en) * 2007-02-06 2008-08-07 British Telecommunications Public Limited Company Network monitoring system
JP2011009610A (en) * 2009-06-29 2011-01-13 Sharp Corp Nitride semiconductor laser device and wafer
IT1395875B1 (en) * 2009-07-31 2012-10-26 Rimondini METHOD FOR THE PASSIVE MEASUREMENT OF THE ONE-WAY DELAY AND THE NUMBER OF PACKAGES LOST IN TELECOMMUNICATIONS NETWORKS BASED ON PACKETS
JP5587809B2 (en) * 2011-02-16 2014-09-10 インターナショナル・ビジネス・マシーンズ・コーポレーション Control and monitoring of high-speed millimeter-wave links using out-of-band radio channels
EP2773144A1 (en) * 2013-03-01 2014-09-03 Thomson Licensing Method of diagnosis of degradation in a heterogeneous network using a neighbour network
US9787461B1 (en) * 2016-11-28 2017-10-10 Rad Data Communications Ltd. One-way packet delay measurement
CN110855377B (en) * 2019-11-04 2025-03-25 中国信息通信研究院 Communication base station equipment GPSDO test device and method
CN115529259A (en) * 2021-12-16 2022-12-27 四川高迪创智科技有限公司 A New Signal Delay Measurement and Synchronization Method

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0656411B2 (en) * 1984-12-27 1994-07-27 ソニー株式会社 Spread spectrum signal receiver
JPH06508008A (en) * 1991-06-12 1994-09-08 ヒューレット・パッカード・カンパニー Method and apparatus for testing packet-based networks
US5280629A (en) * 1991-12-06 1994-01-18 Motorola, Inc. Technique for measuring channel delay
US5276677A (en) * 1992-06-26 1994-01-04 Nec Usa, Inc. Predictive congestion control of high-speed wide area networks
US5481258A (en) * 1993-08-11 1996-01-02 Glenayre Electronics, Inc. Method and apparatus for coordinating clocks in a simulcast network
US5570346A (en) 1994-12-08 1996-10-29 Lucent Technologies Inc. Packet network transit delay measurement system
FR2729025B1 (en) * 1995-01-02 1997-03-21 Europ Agence Spatiale METHOD AND SYSTEM FOR TRANSMITTING RADIO SIGNALS VIA A SATELLITE NETWORK BETWEEN A FIXED EARTH STATION AND MOBILE USER TERMINALS
GB2300789B (en) * 1995-05-12 2000-04-05 Gen Datacomm Adv Res Data network
JP3094900B2 (en) 1996-02-20 2000-10-03 ヤマハ株式会社 Network device and data transmission / reception method
US5963943A (en) * 1996-05-28 1999-10-05 Mci Communication Corporation System and method for storing and retrieving performance and topology information
CA2202116C (en) * 1996-07-18 2000-08-01 Liang Hsu Packetized cdma/tdm satellite communication system
SE507227C2 (en) * 1996-09-16 1998-04-27 Ericsson Telefon Ab L M Method and device for synchronizing time stamping
US5859595A (en) * 1996-10-31 1999-01-12 Spectracom Corporation System for providing paging receivers with accurate time of day information
JP3591753B2 (en) * 1997-01-30 2004-11-24 富士通株式会社 Firewall method and method
US6091359A (en) * 1997-07-14 2000-07-18 Motorola, Inc. Portable dead reckoning system for extending GPS coverage
DE19746904B4 (en) * 1997-10-23 2004-09-30 Telefonaktiebolaget L M Ericsson (Publ) Traffic data evaluation device and associated method for a network with dynamic switching
SE9704784L (en) * 1997-12-19 1999-06-20 Ericsson Telefon Ab L M Method and apparatus in a packet switching network
KR100329186B1 (en) * 1997-12-27 2002-09-04 주식회사 하이닉스반도체 Reverse Call Channel Search Method of CDM Mobile Communication System
US6236363B1 (en) * 1998-01-30 2001-05-22 Micronetics Wireless Smart antenna channel simulator and test system
US6078576A (en) * 1998-02-04 2000-06-20 Golden Bridge Technology, Inc. High processing gain CDMA/TDMA system and method
US6483856B1 (en) * 1998-07-29 2002-11-19 Trimble Navigation Limited GPS synchronized data communications link
US6222483B1 (en) * 1998-09-29 2001-04-24 Nokia Mobile Phones Limited GPS location for mobile phones using the internet
US6259677B1 (en) * 1998-09-30 2001-07-10 Cisco Technology, Inc. Clock synchronization and dynamic jitter management for voice over IP and real-time data
US6469986B1 (en) * 1998-10-22 2002-10-22 Electronic Data Systems Corporation Method and system for configuring a network management network
US6987746B1 (en) * 1999-03-15 2006-01-17 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
US6646996B1 (en) * 1999-12-15 2003-11-11 International Business Machines Corporation Use of adaptive resonance theory to differentiate network device types (routers vs switches)
US6987823B1 (en) * 2000-02-07 2006-01-17 Rambus Inc. System and method for aligning internal transmit and receive clocks
US6985499B2 (en) * 2000-04-20 2006-01-10 Symmetricom, Inc. Precise network time transfer
AU2001261848A1 (en) * 2000-05-18 2001-11-26 Brix Networks, Inc. Method and system for transmit time stamp insertion in a hardware time stamp system for packetized data networks

Also Published As

Publication number Publication date
WO2002025821A2 (en) 2002-03-28
WO2002025821A3 (en) 2003-10-30
US20040024550A1 (en) 2004-02-05
DE50111060D1 (en) 2006-11-02
ATE340435T1 (en) 2006-10-15
US8160835B2 (en) 2012-04-17
EP1382126A2 (en) 2004-01-21
DE10046240A1 (en) 2002-03-28
EP1382126B1 (en) 2006-09-20

Similar Documents

Publication Publication Date Title
WO2002025821A8 (en) Method for measuring unidirectional transmission characteristics in a data network
US6661810B1 (en) Clock skew estimation and removal
US6665317B1 (en) Method, system, and computer program product for managing jitter
US6438702B1 (en) Method for providing a precise network time service
WO2001080024A3 (en) Gateway buffer prioritization
TW429708B (en) Quality of service improvement of internet real-time media transmission by transmitting redundant voice/media frames
JP5249682B2 (en) Passage time fixing device for protective relay device
EP1239620A2 (en) Relative time synchronization between three or more systems
WO2001088667A3 (en) Non-deterministic software delay estimation method and system for packet based data network systems
EP1554830B1 (en) A method of determining a timing offset between a first clock and a second clock in a communications network
WO2005029780A3 (en) Systems and methods for measuring the distance between devices
EP1538795A3 (en) Push data packet for minimizing buffering delay
WO2003053002A3 (en) Method and system of measuring latency and packet loss in a network
US20050030900A1 (en) Method, receiving device and transmitting device for determining the fastest message path without clock synchronisation
WO2002082269A3 (en) System observation bus
US20090257455A1 (en) Method and apparatus for synchronizing timing of signal packets
JP4815534B2 (en) Packet delay characteristic measuring apparatus and method
US6515962B1 (en) Hit-less switching pointer aligner apparatus and method
EP1318648A3 (en) Fast path recovery method in label switching networks, and network arrangement to carry out the method
Ishibashi et al. Causality and media synchronization control for networked multimedia games: Centralized versus distributed
JP2001111623A (en) Distributed time synchronization method and distributed time synchronization system using the method
Ngamwongwattana et al. Sync & sense: VoIP measurement methodology for assessing one-way delay without clock synchronization
JPH11109062A (en) Time synchronous system
Trump Estimation of clock skew in telephony over packet switched networks
Sakuray et al. Analysis and estimation of playout delay in VoIP communications

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2001969381

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 10381095

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 2001969381

Country of ref document: EP

CFP Corrected version of a pamphlet front page

Free format text: UNDER (54) PUBLISHED TITLE REPLACED BY CORRECT TITLE

WWG Wipo information: grant in national office

Ref document number: 2001969381

Country of ref document: EP